<template>
  <div class='Login_Container'>
    <div class='login_Box'>
      <!-- 这是头像区 -->
      <div class='login_logo'>
        <img src='../assets/logo.png' alt='' />
      </div>
      <!-- 表单区登录 -->
      <el-form
        label-width='0px'
        :rules='loginFormRex'
        class='loginForm'
        :model='loginForm'
        ref='LoginReset'
      >
        <el-form-item prop='username'>
          <el-input
            prefix-icon='iconfont icon-user'
            v-model='loginForm.username'
            placeholder='请输入账号'
          ></el-input>
        </el-form-item>
        <!-- 表单区密码 -->
        <el-form-item prop='password'>
          <el-input
            type='password'
            v-model='loginForm.password'
            prefix-icon='iconfont icon-3702mima'
            placeholder='请输入密码'
            show-password
          ></el-input>
        </el-form-item>
        <!-- 表单区按钮 -->
        <el-form-item class='boks'>
          <el-button type='primary' @click='login'>登录</el-button>
          <el-button type='info' @click='LoginReset'>重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>
<script>
export default {
  data () {
    return {
      // 这是登录表单的数据绑定对象
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      // 这是表单的验证规则对象
      loginFormRex: {
        // 验证用户名是否合法
        username: [
          { required: true, message: '请输入账号', trigger: 'blur' },
          {
            min: 3,
            max: 11,
            message: '长度在 3 到 11 个字符',
            trigger: 'blur'
          }
        ],
        // 验证密码是否合法
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 16,
            message: '长度在 6 到 16 个字符',
            trigger: 'blur'
          }
        ]
      }
    }
  },
  methods: {
    LoginReset () {
      this.$refs.LoginReset.resetFields()
    },
    login () {
      this.$refs.LoginReset.validate(async valid => {
        if (!valid) return
        const res = await this.$http.post('login', this.loginForm)
        if (res.meta.status !== 200) return this.$message.error('登录失败！')
        this.$message.success('登录成功！')
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      })
    }
  }
}
</script>
<style lang='less' scoped>
.Login_Container {
  background-color: #2b4b6b;
  height: 100%;
}
.login_Box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  .login_logo {
    width: 130px;
    height: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}
.loginForm {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
  .boks {
    display: flex;
    justify-content: flex-end;
  }
}
</style>
